A reservoir-type closed-loop water body in-situ water purification device

Abstract

This utility model discloses a reservoir-type closed-loop water body in-situ water purification device, comprising an upper floating island and a lower floating island arranged vertically. The upper floating island includes a water tank with an open top, made of a material with a density less than that of water, and has a leakage hole at the bottom. The lower floating island includes a support frame, with a support rod fixed to the top of the support frame for connecting to the water tank. A floating body for planting aquatic plants is installed at the top of the support frame. Multiple sets of suspended biological packing materials are evenly suspended within the space enclosed by the support frame. A submersible pump is located at the geometric center of the area with the suspended biological packing materials. A nozzle is installed at the top of the water tank, and the submersible pump is connected to the nozzle via a water pipe passing through the water tank. Micro-aeration devices are evenly distributed within the support frame. Aquatic plants are planted on both the water tank and the floating body. The device has a simple structure, is easy to assemble, and provides good purification effect.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, specifically to an in-situ water purification device for a reservoir-type closed water body. Background Technology

[0002] Bio-floating islands, also known as artificial floating islands, ecological floating islands, or artificial floating beds, are floating artificial facilities that utilize the synergistic effects of plants, microorganisms, and animals to purify water and restore ecosystems. Through hydroponics, they construct small ecosystems on the water surface, combining multiple functions such as water purification, habitat creation, and landscaping. Most drinking water originates from treated surface water. Currently, bio-floating islands are diverse, but most simply hang packing material directly under a floating board, achieving purification through plant purification and the adsorption effect of the packing material. However, they cannot control the dissolved oxygen within the packing material, resulting in ineffective treatment. They are also unsuitable for enclosed water bodies without water flow. Therefore, there is an urgent need for a purification device suitable for enclosed water bodies. Utility Model Content

[0003] This utility model aims to solve the technical problems existing in the prior art, and innovatively proposes a reservoir-type closed water body in-situ water quality purification device, which has a simple structure, is easy to assemble, and has a good purification effect.

[0004] To achieve the above objectives, this utility model provides a reservoir-type closed water body in-situ water quality purification device, including an upper floating island and a lower floating island arranged vertically. The upper floating island includes a water tank with an opening at the top. The water tank is made of a material with a density less than that of water, and a leakage hole is provided at the bottom of the water tank.

[0005] The lower floating island includes a support frame, with a support rod fixed to the top of the support frame for connecting to the water tank. A floating body for planting aquatic plants is set on the top of the support frame. Multiple sets of suspended biological fillers are evenly suspended within the space enclosed by the support frame. A submersible pump is set at the geometric center of the area where the suspended biological fillers are suspended. A nozzle is set on the top of the water tank. The submersible pump is connected to the nozzle through a water pipe passing through the water tank. Micro-aeration devices are evenly distributed within the support frame. Aquatic plants are planted on both the water tank and the floating body.

[0006] This invention is used in enclosed water bodies such as reservoirs. Because the support frame is welded from a large amount of stainless steel, it is quite heavy. Therefore, in actual use, the lower floating island is located below the water surface, while the water tank is above the water surface (if the weight is insufficient, a counterweight can be added to ensure the lower floating island is below the water surface). Submerged plants can be planted on the lower floating island, and emergent plants can be planted in the upper water tank. The roots of these various plants absorb pollutants from the water, achieving a purification effect and increasing aesthetic appeal. The biological packing material provides a habitat for microorganisms and nitrifying bacteria. Located underwater, the packing material creates an anoxic or anaerobic environment. An aeration device improves the dissolved oxygen levels inside. Depending on the type of pollutant, the packing material can be configured to provide various treatment environments (anoxic, aerobic, anaerobic) for better treatment results. A submersible pump diverts water from around the support frame into the biological packing material for treatment. The water is then reoxygenated by the submersible pump and spray nozzles before returning to the water body. The spraying also creates turbulence, further enhancing the treatment effect. While creating a water landscape, the spraying action disturbs the water surface, increases reoxygenation, enhances dissolved oxygen in the water, and further improves the water's self-purification capacity.

[0007] In the above scheme: the floating body is provided with multiple planting holes, and each planting hole is provided with a planting basket, in which the aquatic plants are planted. This facilitates the fixed cultivation of underwater plants.

[0008] In the above scheme: the aquatic plants planted in the water tank are emergent plants, and the plants planted on the floating body are submerged plants, which is a reasonable arrangement.

[0009] In the above scheme: the emergent plant is at least one of canna lily, thaliana, and water bamboo, and the submerged plant is hornwort. These plants can effectively absorb and treat pollutants in the water.

[0010] In the above solution: the micro-aeration device is a micro-nano aeration head. Micro-nano aeration heads effectively reduce energy consumption and operating costs, and provide good aeration. Micro-nano aeration heads are existing technology, and their installation method is also existing technology, including an air pump and connected pipes, etc.

[0011] In the above scheme: the supporting frame is a cuboid or cube frame made of steel pipes, with a cross-shaped support on the ground. Diagonal rods are installed between the midpoints of two diagonally opposite columns. Two micro-aeration devices are mounted on two rods of the cross-shaped support, each located midway between the intersection and each endpoint. Two micro-aeration devices are also installed on each diagonal rod, each located midway between the intersection and each endpoint. By evenly arranging the micro-aeration devices at these locations, the dissolved oxygen within the space enclosed by the packing material can be more uniformly improved, resulting in a better treatment effect.

[0012] In the above scheme: the support frame is provided with hanging rods for suspending biological packing material.

[0013] In summary, the beneficial effects of this utility model are as follows: The support frame provided by this utility model facilitates the installation of the suspended biological packing material and submersible pump on the ground, making assembly convenient. The submersible pump can draw water from below the biological packing material to the nozzles, creating disturbance in the water body and diverting surrounding water into the biological packing material for treatment. The water then returns to the water body after being reoxygenated by the submersible pump and nozzles. The spraying also has a turbulence effect, resulting in better treatment. The included micro-aeration device can aerate the water, meeting the oxygen requirements of the microorganisms. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the support frame and the micro-aeration device. Detailed Implementation

[0016] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0017] like Figure 1 , 2 As shown, a reservoir-type closed water body in-situ water purification device includes an upper floating island and a lower floating island arranged at intervals. The upper floating island includes a water tank 1 with an upper opening. The water tank 1 is made of a material with a density less than that of water, and a leakage hole 1a is provided at the bottom of the water tank 1.

[0018] The lower floating island includes a cubic support frame 3, with a support rod fixed to the top of the support frame 3 for connecting to the water tank 1. A floating body 2 for planting aquatic plants is installed on the top of the support frame 3. Aquatic plants are planted on both the water tank 1 and the floating body 2, including at least one of canna lilies, thaliana, water bamboo, and hornwort. Canna lilies primarily remove pollutants such as nitrogen (ammonia nitrogen, nitrate nitrogen), phosphorus, organic matter, and some heavy metals (such as lead, zinc, and cadmium) from the water. Thalia canna lilies primarily remove pollutants such as nitrogen (especially ammonia nitrogen), phosphorus, organic matter, and some heavy metals. Its tall stature and highly developed root system (numerous and long fibrous roots) form a dense root network with a large absorption surface area, making it particularly effective at removing ammonia nitrogen and also capable of accumulating heavy metals. Water bamboo primarily removes pollutants such as nitrogen, phosphorus, organic matter, and suspended solids. Its stems grow in clusters, and its root system is well-developed (numerous fibrous roots). It effectively absorbs nutrients, and its dense root system and stem base effectively filter and trap suspended particulate matter. The main pollutants removed by *Ceratophyllum demersum* include nitrogen, phosphorus, organic matter (especially dissolved organic matter), and suspended algae (through competitive inhibition). As a submerged plant, *Ceratophyllum demersum* can directly absorb dissolved nutrients from the water. By rapidly absorbing nitrogen and phosphorus, it competes with other algae, effectively inhibiting algal blooms.

[0019] The float 2 has multiple planting holes, each containing a planting basket 2a, into which aquatic plants are planted. The aquatic plants planted in the water tank 1 are emergent plants, while those planted on the float 2 are submerged plants.

[0020] Multiple sets of suspended biological packing material 4 are evenly suspended within the space enclosed by the support frame 3. The support frame 3 is equipped with hanging rods 4a for suspending the biological packing material 4, facilitating its installation. A submersible pump 5 is located at the geometric center of the area where the suspended biological packing material 4 is suspended. This pump directs water from around the support frame 3 to the biological packing material 4. This rational arrangement facilitates the decomposition of substances in the water by microorganisms and nitrifying bacteria attached to the biological packing material 4, purifying the water. The water is then returned to the water body after being reoxygenated by the submersible pump and spray nozzles. Spray nozzles 6 are installed on the top of the water tank 1. The submersible pump 5 is connected to the spray nozzles 6 via a water pipe passing through the float 2 and the water tank. Micro-aeration devices 7 are evenly distributed within the space enclosed by the support frame 3. These micro-aeration devices 7 are micro-nano aeration heads. This effectively reduces energy consumption and operating costs, provides excellent aeration, and utilizes existing technology, including an air pump and connected piping.

[0021] The support frame 3 is a cuboid or cube frame made of steel pipes. A cross-shaped bracket 7b is installed on its bottom surface. Diagonal rods 7a are installed between the midpoints of two diagonally opposite columns. Two micro-aeration devices 7 are mounted on two rods of the cross-shaped bracket 7b, each located midway between the intersection and each end point. Two micro-aeration devices 7 are also installed on each diagonal rod 7a, each located midway between the intersection and each end point of the two diagonal rods 7a. The intersection of the diagonal rods 7a allows for the installation of a submersible pump 5, saving on installation structure.

Claims

1. A reservoir type closed water body water quality in-situ purification device, characterized in that: It includes an upper floating island and a lower floating island arranged vertically. The upper floating island includes a water tank (1) with an upper opening. The water tank (1) is made of a material with a density less than that of water. The bottom of the water tank (1) has a leakage hole (1a). The lower floating island includes a support frame (3), the top of which is fixed with a support rod (3a) for connecting the water tank (1). The top of the support frame (3) is provided with a floating body (2) for planting aquatic plants. Multiple sets of suspended biological fillers (4) are evenly suspended in the space enclosed by the support frame (3). A submersible pump (5) is provided at the geometric center of the area where the suspended biological fillers (4) are provided. A nozzle (6) is provided at the top of the water tank (1). The submersible pump (5) is connected to the nozzle (6) through a water pipe passing through the water tank. Micro-aeration devices (7) are evenly distributed in the support frame (3). Aquatic plants are planted on both the water tank and the floating body (2).

2. The water quality in-situ purification device for a closed water body in the form of a reservoir according to claim 1, characterized in that: The floating body (2) is provided with multiple planting holes, and each planting hole is provided with a planting basket (2a), in which the aquatic plants are planted.

3. The water quality in-situ purification device for a closed water body in the form of a reservoir according to claim 1, characterized in that: The aquatic plants planted in the water tank (1) are emergent plants, and the plants planted on the floating body (2) are submerged plants.

4. The reservoir-type closed-loop water body in-situ purification device according to claim 3, characterized in that: The emergent plant is at least one of canna lily, thaliana, and water bamboo, and the submerged plant is hornwort.

5. A reservoir-type closed-loop water body in-situ purification device according to any one of claims 1 to 3, characterized in that: The micro-aeration device (7) is a micro-nano aeration head.

6. The reservoir-type closed-loop water body in-situ purification device according to claim 5, characterized in that: The support frame (3) is a cuboid or cube frame made of steel pipes. A cross-shaped support (7b) is set on the ground. A diagonal rod (7a) is set between the midpoints of two diagonal columns among its four columns. There are two micro-aeration devices (7) on the two rods of the cross-shaped support (7b). The two micro-aeration devices (7) are respectively located at the midpoint from the intersection to each end point. There are also two micro-aeration devices (7) on each diagonal rod (7a). The two micro-aeration devices (7) are respectively located at the midpoint from the intersection of the two diagonal rods to each end point.

7. The reservoir-type closed water body in-situ water purification device according to claim 6, wherein the support frame (3) is provided with a hanging rod (4a) for suspending the biological packing material (4).

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